Telephone answering and recording devices



July 1957 H. R. VANDEVENTER ET AL 2,799,726

TELEPHONE ANSWERING AND RECORDING DEVICES Original Filed May 27, 1950 4 Sheets-Sheti INVE TORS 1 Mp4, M. BY PM 6 ATTORNEYS -July 16, 1957 H. R. VAN DEVENTER ET AL TELEPHONE ANSWERING AND RECORDING DEVI CES Original Filed May 27, 1950 4 Sheets-Sheet 2 v MOTo on OH-IIIIIIIII [22 LQ VOLUMEH'NC Men-ml 55 TIMER 55w INVENTORS M- J F! e. 6 WMV'JM ATTORNEYS July 16, 1957 H. R. VAN DEVENTER ETAL 2,7

TELEPHONE ANSWERING AND RECORDING nsvrcas 4 Sheets- Sheet 5 Original Filed May 27, 1950 JL J 5 JJ T3; is; W f Irina Y udruh B an 0 3 to era-min 1: VNLX- TO m h a 10 e... T4 JIUO a Ilv. :5 1

VEN TORS ATTORNEYS United States Patent TELEPHONE ANSWERING AND RECORDING DEVICES Harry R. Van Deventer and John J. Shively, New York, 7

N. Y., and Paul C. Bailey, Hatboro, Pa., assignors, by direct and mesne assignments, to Telephone Answering and Recording Corporation, New York, N. Y., a corporation of Delaware 11 Claims. (Cl. 179-6) This invention relates to telephone answering devices which may also be used to record messages received over a telephone line circuit and is of the type using records which may be of any desired type.

This application is a division of the pending application Serial Number 164,734, filed May 27, 1950, now Patent No. 2,724,015, granted November 15, 1955.

A record may be made, hereinafter termed a talkout message and will be delivered to the calling party via the telephone line. Then, if desired, the calling party may speak and the incoming speech will be recorded on another record, which the user of the device can play back at will.

A recording device to be used in conjunction with a telephone circuit for the purpose of answering said telephone and recording the received message in the absence of persons in its vicinity, should have many features not common to ordinary recording and playback devices. Said features, to be described, relate not only to the mechanical efiiciency of the apparatus, but also to the simplifying of its operation and to the safety of the operator, the apparatus and its appurtenances, keeping in mind the fact that the device will be used principally by persons mechanically and electrically unskilled.

It is further desirable that, despite the compact form the device must assume, repairs, when necessary, be readily accomplished Without the necessity of removing the instrument from its installed location or completely disassembling the apparatus to replace a part.

Objects of the invention are:

To provide a telephone answering device wherein a single turntable is used for both the talkout record and the message-taking record, said talkout record to be recorded either on the inner extremity of the large record or on a separate record which may be placed directly over said large record.

To provide a telephone answering device wherein a talkout message of any length up to the full capacity of the large record may be recorded, and means whereby the function of the device may be simply that of answering incoming calls without taking an answer thereto.

To furnish a telephone answering device with a minimum of manual adjustments wherein, when it is desired to record, the act of placing the recorder and recording arm on its associated record starts the turntable and sets up the electrical circuits for recording, and when it is desired to play back a message already recorded, the act of placing the playback reproducer and its arm in position upon said message again starts the. turntable and sets up the circuits for playback. When it is desired to use the machine to answer incoming calls, the act of placing both arms in their respective positions on the turntable sets up the electrical circuits for answering, so that the machine may be said to be almost fully automatic.

To, provide a telephone answering, device wherein, after ice the talkout message has been deliveved, the shift of circuits from playout to record-in-hereinafter termed the mid-cycle shiftis accomplished automatically by a relay tuned to the frequency of a tone signal which has been recorded on the record at the end of the talkout message and at the time said talkout message was'made. The sensitivity of said relay is adjusted to respond only to the higher voltage level of the recorded tone signal so that it will not be operated by any possible signal of the same frequency at normal voice level as, for instance, during the playing out of the talkout message.

To provide a telephone answering device having a sec-- and playback arm and a second tuned relay so that the subscriber, in calling his own machine from an outside telephone, may, after listening to his talkout message, use a whistle or other simple tone generator to operate said second tuned relay which, in a manner presently to be described, immediately reverses the electrical circuits from record-in to playout, and simultaneously lowers said second playback arm to the record so that said subscriber may listen from an outside telephone to messages taken by his machine at its installed location.

To provide a telephone answering device, the amplifier components of which are mounted upon a separate chassis, said chassis being fitted with suitable plugs in such a manner as to engage oppositely mounted plugs in the main chassis of the machine so that, in the interest of rapid maintenance service, the amplifier and its associated electronic circuits may be withdrawn from the machine when trouble occurs in said circuits, and another plugged in inits place.

To provide novel means for lifting the recording. element from the record during the talkout phase of the answering cycle.

For the sake of illustrating a preferred form of the invention, it is shown as applied to a disk record type of phonograph and the telephone is a standard common battery instrument connected to a manual or automatic exchange. Many of the features herein disclosed can be applied to other types of phonographs such as those employing wire or tape records and the disclosure here made is illustrative only and not limitative, the invention being as defined in the appended claims.

In the accompanying drawings:

, Figure 1 is a side view partly in section of a device embodying the invention;

Figure 2 is a top view of the device shown in Fig. 1;

Figure 3 is a wiring diagram of the device shown in all the accompanying figures;

Figure 4 is a view of the answering reproducer, its arm and the operating magnet 74 therefor;

Figure 5 is a polar diagram illustrating the answering and recording cycle of the device; and

Figure 6 is a polar diagram of the repeater or message repeat overline cycle of the device.

GENERAL DESCRIPTION Referring to Figure l, the numeral 20 denotes the plate or chassis upon which the components of the machine are mounted. The top of the cabinet, which may assume any desired form, is shown at 21, while the four sides separately removable, are designated as 22; On the top of said chassis are mounted the turntable 23, a first playback arm 24, a recording arm 25, a second playback arm 26, and various controls, all presently to be described. Attached to the underside of the chassis are the various driving mechanisms also to be described. The amplifier 27 is mounted to the underside of the chassis by means of plugs 28 in such a manner that saidamplifier. may be removed withoutdisconnecting any wires. The

usual volume control 270 is provided for the amplifier 27.

In a telephone answering and recording device where a message is delivered to a calling party and said calling party is invited to leave a message which is to be recorded by the machine, there must occur, at the end of the talkout message, a shift of circuits from playout to record-in. Heretofore, this mid-cycle shift has been effected mechanically as explained in previous patents and co-pending applications. In the present invention that shift of circuits is accomplished electronically by means of a tuned relay in the following manner:

A talkout message is made either on the outer edge of a record blank 29 or on a separate small record blank 65 in a manner hereinafter described. At the end of said message, a tone signal of suitable frequency is impressed upon said blank. Incorporated in the amplifier is a tuned relay 30 which, in a manner familiar to the art, is tuned to the frequency of the aforementioned tone signal; the frequency in this case was preferred in the 1400 cycle range so that the same oscillator might be used for both operating the tuned relay 30 and for generating the tone warning signal to be sounded while recording on the telephone line.

After the talkout message has been played out to the calling party, the recording of the tone frequency is expressed through the amplifier 27 in the output circuit of which is connected the tuned relay 30. As the relay 30 will energize only at this frequency, its contacts 30-A close, thus energizing the mid-cycle relay 31.

The mid-cycle relay 31 serves the dual purpose of changing circuits and lifting the playback arm 24 from the record and returning it to its starting position. Applications Serial No. 30,538, filed June 2, 1948, and Serial No. 133,506, filed December 17, 1949, may be referred to for the mechanical details of the arm lifting mech anism.

The operating mechanism for recording arm 25 has been described in the aforesaid co-pending application No. 30,538 and need not be described here except to note that the recording arm is driven through gears 33 and 34 by means of a motor 35 of suitable speed.

Figure 1 shows the means employed to raise and lower the recording element 32. A lever 36 is attached to the recording element 32 in such a manner as to extend back,

through the arm 25 so that its opposite extremity extends over a rod 37, the lower end of which is in contact with the armature 38a of an electromagnet 38. Near the outer end of the lever 36 is an opening 39 in such a position as to allow rod 37 to pass through said lever. Attached to the under side of arm 25 and extending over the opening 39 is a flat spring 44} which normally presses down on the end of lever 36 keeping the recording element 32 up off the record 29 or 65. Thus it will be seen that, when the electromagnet 38 is energized, its armature will move rod 37 upwards in such a manner as to release the pressure of spring 40 upon the end of lever 36 and so allow the recording element 32 to be lowered to the record.

A coil spring 41 is attached to the lever 36, part of said lever and block 42 forming the hinge upon which the recording element is pivoted. The opposite end of coil spring 41 is attached to a screw 43 mounted in a block 44 as a means of adjusting the tension of spring 41, a mounting well known in the art and requiring no further explanation.

In Figures 1 and 2 is shown the details of a switch 49 which is operated by the recording arm for the purpose of setting the machine up for recording. The electrical functions of switch 49 will be described later. A rod 45 passes through the chassis 20 and the recording arm rest 46 and projects outwardly into the slot 47 of the rest. The rod 45 has an insulating pad 48 at its lower end, which rests on the upper contact of switch stack 49 so that, when the recording arm 25 is placed in its rest,

4 the switch 49 is operated. A similar switch 50 is operated in a like manner by the playback arm 24.

A limit switch mechanism 49a similar to that described in the aforesaid copending application is used to prevent the machine from operating when the record has reached its full capacity. This switch is operated when arm 25 reaches the limit of its movement, whereupon the current supply is opened, as shown in Fig. 3.

Recording locally, using the telephone transmitter as a microphone A three position key 51 on one of its positions connects the telephone line L1, L2 into the device; on another of its positions, said key sets up the electrical circuits for recording locally, disconnecting the telephone line and inserting a current supply in series with the telephone circuit 52 so that the transmitter of said telephone may be used as a microphone, independent of the telephone line. A third position is used for playing back the recorded messages.

Figure 3 will show that in moving key 51 to its Record Local position, current derived from a tap X1, X2 on the resistor 56 in the amplifier power supply is inserted in series with the telephone 52 by means of contacts 51-1 on key 51. This supplies talking battery to the telephone transmitter so that same can be used as a microphone for recording speech on record 29 or 65. A second set of contacts 51-2 disconnects the L-1 side of the telephone line from the T-1 side of the telephone circuit and connects the ringing relay 67 and condenser 68 across the telephone line. A third set of contacts 51-3 opens the circuit to the tone signal generator 57 shown in Figure 3 as grouped with the amplifier. A fourth set of contacts 514 disconnects the L-2 side of the telephone line from v the T-2 side of the telephone.

When recording locally the playback arm 24 is at off position. In lifting the recording arm from its rest 46 to place said arm on the record, the aforementioned switch 49 is moved to on position as shown in Figure 3. The circuit may be traced in Fig. 3 as follows; on switch 49 a set of contacts 49-1 which control the electronic interval timer 58 are closed but, being in series with another set of contacts 50-1 on the playback arm switch 50 (said contacts being open at this time), the interval timer 58 is inoperative. It will be understood that the interval timer 58 operates to determine the duration of the recording period when recording incoming messages over the telephone line and not at other times.

A second set of contacts 49-2 on switch 49 function only on answering and will be explained under same.

A third set of contacts 49-3 on switch 49 obtain current from one side of the current supply line through the B side of contacts 50-2 on switch 50 to energize relay 31. In closing, relay 31 starts motor 59 through contacts 31-1, closes the negative side of the amplifier power supply through contacts 31-2, and connects the telephone 52 into the input of the amplifier 27 through contacts 31-5 so that speech expressed into the transmitter of said telephone will energize the recording element or cutter 32 which is connected to the output of the amplifier.

A timer 60, used to time the interval between the tone signal pulses, is driven by a motor 61. Said timer is fully described in the aforesaid co-pending application and need not be described in further detail here except to note that here a variable electronic timer 58 is substituted for the mechanical arrangement shown in said co-pending application.

Although motor 61 is energized while recording locally, and the contacts 61a are operated, the tone signal is inoperative when recording locally by reason of the tone signal circuit being open at contact 51-3 of key 51, which at this time is thrown to Record Local.

Therefore, to use the device for recording locally, the A. C. supply switch 53 is closed, a record blank 29 or 65 is placed on the turntable, key 51 is moved to '5 Record Local position and the recording arm 25 is placed in position on said record blank with the playback arm 24 in its rest 54. The motor switch 55 is closed; starting the turntable 23 and the telephone transmitter is used as a microphone to record on the record.

To record the talkout record A suitable mechanism for locating the starting position of the recording arm 25 relative to the record blank has been described in detail in said co-pending application and will not be described here as this feature is not claimed herein. With the present invention it is preferred that the talkout message be started at the outer extremity 62 of the record and recorded toward the center thereof. However, by simply changing the direction of rotation of motor 35, the talkout message may be started at the inner extremity 63 of the record and recorded outwardly therefrom, in which case a stop 64 will serve to fix the starting point of the talkout message. The talkout message may also be recorded in either direction on a separate small blank 65 which may be placed directly over the large blank 29.

The key 51 is moved to Record Local position and the motor switch 55 is closed, starting motor 59 which rotates the turntable 23. The talkout message is spoken into the telephone transmitter and at the end of said message a push button switch 57a is manually operated which impresses a tone signal on the record, said tone signal being of greater intensity than the normal speech level. The purpose of this tone signal will be explained under Answer Incoming Calls. The talkout message should then be played back to check the correctness of the wording.

Playing back recorded messages When key 51 is moved to playback position, a pair of contacts 51-5 disconnects the telephone line 12 from the telephone 52. Contacts 51-6 connect the relay 67 and condenser 68 across the telephone line. When the playback arm 24 is lifted from its rest and placed on the record, switch 50 is moved to on position. Two sets of contacts 50-1 and 50-3 of said switch function only on Answering Incoming Calls and will be explained under that heading. Contacts 50-2 energize the relay 66 through the A side of contacts 49-2 on switch 49, said switch being at oil position, due to the recording arm 25 being at rest ofi the record. The holding or locking circuit of relay 66 comprising contacts 66-1 and necessary only on Answering, is broken at the B position of contacts 49-2, so that the relay will lock in only on Answering. In closing, relay 66, through contact 66-2, energizes the motor 59 which moves the turntable 23. Contacts 66-3 close the negative side of the amplifier power supply, thus energizing the amplifier.

Therefore when it is desired to play back messages already recorded, it is only necessary to place the recording arm 25 in its rest, which act disconnects its transverse driving mechanism (as described in the aforesaid co-pending application), and operates the switch 49 via plunger 45. The key 51 is thrown to playback position and the playback arm 24 is placed in position on the record 29 or 65. The motor switch 55- is closed, starting the motor 59 which revolves turntable 23, and the telephone receiver is used for listening to the message recorded on the record.

T play back recorded messages over the telephone line The same sequence applies in this function as was described under the last heading with the exception that the key 51 is moved to Line position, in which the telephone and amplifier circuits are connected to the telephone line so that any speech introduced into the amplifier will be expressed into both the local telephone 52 and any telephone .connected at the distant end of'the telephone line L1, L2.

, Answering incoming calls Figure 3 shows the circuit as set up for automatic answering. The key 51 is moved to Line position and both arms 24 and 25 being on the record in their respective operating positions, switches 49, 50 are at on" position, the power supply switch 53 and the motor switch 55 being closed. One side of the ringing relay 67 is connected permanently to the L-2 side of the telephone line, the other side of said relay being connected to its associated condenser 68, said condenser being connected through contacts 49-1 .and 50-1 and 50-2 to the L-1 side of the telephone line so that, upon the application of ringing current to the telephone line, relay 67 will be energized, closing its contacts 69. Contacts 69, deriving current from one side of the supply source through contacts 49-2 and 50-2, energize relay 66 which closes its contacts 66-4 to short circuit the ringing condenser 68, in this manner placing an impedance across the tele phone line so as to operate the supervisory signal at the telephone exchange in a manner that will be obvious and which is explained in the aforesaid co-pending application. Contacts 66-3 close the negative side of the amplifier power supply, energizing the amplifier 27; contacts 66-2 energize the motor 59 and contacts 66-1 hold the relay 66 in energized condition.

The motor 59 moves the turntable, and the playback arm 24 having started the cycle on the record, traverses said record in a normal manner. At the end of the talkout message, the aforementioned tone signal impressed at the end of the recorded message by button 57a as previously disclosed, is expressed through the amplifier to operate the tuned relay 30 which closes its contacts 30-A and supplies current to the relay 31, which is held in energized condition by' its contacts 31-1. It will be noted that the holding circuit of relay 31 is used only on Answering, said circuit obtaining its current through the on position of contacts 50-3 on switch 50 and through the normally closed side of contacts 70-A in relay 70, the function of which will presently be described.

Contacts 31-4 on relay 31 close the circuit to the tone signal generator 57 while contacts 31-3 close the circuit of the electronic timer 58. Contacts 31-5 in their normal position connect the output 27a of the amplifier 24 to the telephone line L2, the line circuit being capacity-coupled to the amplifier by condenser 270.

When relay 31 is energized and the blade b of contacts 31-5 takes its opposite position, the telephone line is inductively connected to the input 27b of the amplifier so that any speech received on the telephone line will be expressed into the recording element 32 via the coil 27d which therefore inductively couples the recorder to the telephone line circuit. In closing, contacts 31-1 also energize the electromagnet 38 which lowers the recording element 32 to the record, and the tone signal timer motor 61 is started. At the end of the interval for which the electronic timer 58 has been set by timer control 58a in the usual manner, a relay 71 in the timer circuit opens its contacts 71-A, said contacts being in series with the current supply line 71b to all equipment. This automatically resets all circuits to normal, ready for the next call.

From the foregoing it will be seen that the sequence of operation is as follows:

1. Ringing relay 67 is energized by ringing current.

2. Relay 66 is energized.

3. Amplifier 27 is energized.

4. An impedance Winding of relay 67 is placed across the telephone line to hold the supervisory relay or the equivalent automatic switch on dial systems.

5. Motor 59 moves the turntable 23 and the message on record is delivered to the calling party.

6. The tone signal at the end of the recording operates relay 30.

7. Relay 31 is energized.

8. Voice circuits switch from playout to record-in at 31-5.

9. Interval timer 58 is energized to permit recording for a predetermined period.

10. Recording element 32 is dropped to the record 29 and the calling party can record any message he wishes to leave.

11. Tone signal timer 60 is energized to deliver a warning signal from tone generator 57 that a recording is being made.

12. Relay 71 opens its contacts at the end of the recording period, resetting all circuits.

Therefore, when it is desired to use the machine for answering incoming calls, the current supply switch 53 is closed, the motor switch 55 is closed, switch 55 being of the double pole single throw type, one pole of which controls the motor 59 and the other pole of which operates a neon lamp 72 through its associated resistor 73, so that this neon lamp must be lit before leaving the machine. Both the recording arm 25 and the playback arm 24 are placed in their respective positions and the key 51 is moved to Line Position.

Message repeater to a subscriber calling from an outside telephone when no one is present to operate the instrument A repeater playback arm 26 is shown in Figures 1, 2 and 4 as having a roller 74 which in normal position rests upon a ridged horizontal lever 75 which is hinged to the chassis at its outer end 75a. The inner end of lever 75 rests upon a rod 76 which extends through the record center post 77 to the armature 78 of a relay 79. Normally relay 79 is de-energized so that its spring 80 holds the armature in raised position and, through rod 76, holds the lever 75 also in raised position so that the playback arm 26 is normally off the record. When relay 79 is energized, the playback arm 26 will be lowered to the record and traverse same in a normal manner. A switch 81 is operated by arm 82 which is fastened in the shaft 83. Switch 81 is positioned in such a manner as to be operated when the arm 26 reaches the inner extremity 63 of the recording record 29 at which position it de-energizes relay 79 in a manner presently to be described. In de-energizing, relay 79 lifts the lever 75, raising the playback arm 26 and forming an angle upon which said playback arm will swing on roller 74 back to its stop 8d.

In calling from an outside station for a repeat of messages taken by the machine, the subscriber calls the number of the lines to which the machine is connected and listens to his own Talkout message which proceeds in a manner already described. When the Talkout message is ended and the relay 31 has been energized connecting the telephone line into the input of the ampliher for recording as previously described, the subscriber uses a whistle, or similar tone generator to sound a signal of a frequency identical to that to which the second tuned relay 70 has been tuned to respond.

In energizing, relay 70 opens its contacts 70-A which immediately resets the mid-cycle relay 31 changing the voice circuits from record-in to play-out and raises the recording element 32 from the record. Simultaneously relay 7%) has closed its contact 70-3 to energize relay 79 which lowers the second playback arm 26 to the record. Relay 79 is held in energized condition by its holding contact 79-A.

The second playback arm 26 has been positioned on the chassis in such a manner as to have the are described by the line of travel of its needle 85 swung somewhat past the center post '77 so that, should the record be only partially used, the needle 85 will leave the last groove therein, and be pulled by the movement of the turntable towards the center of the record at which point the repeater limit switch 81 is opened, thus resetting all circuits to normal by momentarily opening the current supply line.

The instrument is then ready to answer an incoming call and to record any message the caller wishes to leave, as previously described.

What is claimed is:

l. A device including means to reproduce sounds, including a recording medium having a sound recording thereon; a motor for moving said medium; a source of power; aswitch; a circuit connecting to said source, switch and motor; a second switch means operatively connected to said circuit to control said motor therein; translating means forming part of said first means adapted to reproduce sound from said recording medium; a sound translating device; and means controlled by said second switch means for connecting said translating means to said sound translating device to reproduce said sound recording.

2. The combination as claimed in claim 1 wherein said reproducer has a supporting arm and at least a part of said second switch means is operated by the movement of said arm.

3. In a device adapted to record and reproduce sound, a motor and a recording medium driven thereby, a circuit including said motor and a source of current, translating means adapted to cooperate with said recording medium to record sound thereon and having a member movable to operating and non-operating positions, and a switch connected to said circuit having contacts operatively connected to said translating means and said motor to control both the same when said movable member is moved from non-operating position to operating position.

4. The combination as claimed in claim 3 wherein said translator has a supporting arm forming said movable member and said switch is operated by the movement of said arm.

5. In a sound recording and reproducing device, a motor and a recording medium driven thereby, a circuit including said motor and a source of current, translating means adapted to cooperate with said medium to record sound thereon and including a member having operating and non-operating positions, a second translating means adapted to cooperate with said medium to reproduce sound recorded thereon and including a member having an operating and non-operating position, speech circuits including said translators, and switches in said circuits having contacts operatively connected to said translators and said motor and adapted to control the operation thereof as said movable members are each moved from non-operating to operating position.

6. In a sound recording and reproducing device, a motor and a recording medium driven thereby, a first circuit including said motor and a source of current translating means adapted to cooperate with said medium to record sound thereon and including a movable member having operating andnon-operating positions, a second translating means adapted to cooperate with said medium to-reproduce sound recorded thereon and including a movable member having an operating and non-operating positions, speech circuits including said translators, switch means in said circuits having contacts operatively connected to said translators and motors and adapted to control the operation thereof as said members are each moved from non-operating position to operating position, and means including contact serially included in said first circuit and adapted to open same after a predetermined period.

7. In a device of the character described, a relay having normally open contacts, a phonograph having a motor and sound records, a translating means adapted to reproduce speech from one of said records and having operating and non-operating positions, a second translating means adapted to cooperate with one of said records and having operating and non-operating positions, control circuits connected to both said translating means, switches operatively connected to said translators and having contacts adapted to switch said control circuits connected thereto when said translators are moved from their non-operative positions, a circuit including said switch contacts, and a relay in said last circuit for switching said control circuits.

8. In a device adapted to record and reproduce sound,

a ringing relay having normally open contacts, a reproducing phonograph having a motor and a sound record, a translator adapted to cooperate with said record, a switch having contacts controlled by the position of said translator relative to said record, a startingrelay having contacts, and a circuit, said motor including a source of current and said last contacts, whereby upon actuation of said starting relay same may operate to control said translater.

9. In a device of the character described, a relay having normally open contacts, a phonograph having a motor and sound records, a translator means adapted to cooperate with at least one of said records and having operating and non-operating positions to reproduce speech from one of said records, a translator adapted to cooperate with at least one of said records and having operating and non-operating positions to record speech on at least one of said records, switches operatively connected to said translators and having contacts adapted to switch circuits connected thereto when said translators are moved from their non-operative positions, a circuit including said first switch contacts, a relay in said last circuit for controlling the operation of said translators, means associated with said sound record for producing a signal tone, a relay connected to said reproducer and responsive to said tone, a relay operativeiy connected to said relay and contacts on said last relay for controlling said second translating means for recordmg.

10. In a device of the character described, a reproducing phonograph having a motor and a record having thereon a recording of speech and a signal tone, said phonograph including translating means for reproducing speech and said tone from said record; means for starting said phonograph including a first relay having contacts; a second relay; a source of power; a circuit including said source connected to said contacts and including said second relay; contacts on said second relay; a circuit connected to said power source including said last contacts and said motor whereby upon the closing of said last contacts said motor will operate; a third relay having contacts; means operated by said signal tone including a circuit operatively connected to said third relay; a recording phonograph mechanism including a motor and a recording medium; and means including an operating circuit including said source of current and contacts on said third relay and controlling the motor of said recording phonograph, whereby upon actuation of said device said reproducing phonograph will first deliver recorded speech from the record therein and thereafter upon reproduction of said signal tone, said third relay will control the operation of said recording mechanism for recording on said recording medium therein.

11. The invention as claimed in claim 10, wherein said operating circuit includes a timing device having contacts serially included in circuit with said motor of said recording mechanism.

Falk May 6, 1952 Ammlung et al Oct. 6, 1953 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 2,799,726 July 16, 1957 Harry Ro Van Deventer et al.

It is hereby certified that error appears .in the printed specification of the above numbered patent requiring correction and that the said Letters Patent should read as corrected below.

Column 9, lines 10 and 11, for "contacts, and a circuit, said motor including a source of current and said last contacts, whereby upon actuation of" read contacts, and a circuit including a source of current, said motor and said last contacts, whereby upon actuation of Signed and sealed this 24th day of September 1957.,

( Attest:

KARL mm ROBERT c. WATSON Attestlng Officer Conmissioner of Patents 

